Heating and lighting apparatus.



PATENTED AUG. 2, 1904.

T. G. SMART & J. E. LYNCH.

HEATING AND LIGHTING APPARATUS.

APPLICATION FILED JAN. 9. 1904.

NO MODEL.

awa 4 I I Ely I f g a 35. I 1 E 6 l I l a z 4 x I l u I d a Z aw 125525:inueutur I 5A 5 M g UNITED STATES Patented August 2, 1904.

PATENT OFFICE.

THOMAS (1 SMART AND JOHN E. LYNCH, OF DETROIT, MICHIGAN.

HEATING AND LIGHTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 766,775, dated August2, 1904,

Application filed January 9, 1904. Serial No. 188,410. (No model.)

To (LU 'whmn it warty concern.-

Be it known that we, THOMAS G. SMART and J OHN E. LYNCH, citizens of theUnited States, residing at Detroit, county of Wayne, State of Michigan,have invented a certain new and useful Improvement in Heating andLighting Apparatus; and we declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it pertains to make and use the same,reference being had to the accompanying drawings, which form a part ofthis specifieation.

This invention relates to heating and lighting apparatus; and its objectis to produce a heating apparatus that not only cokes the fuel beforeburning, but also utilizes the gases formed in the coking-chamber forlighting purposes; and its novelty consists in the peculiar arrangementand combination of parts hereinafter more fully described and claimed.

In the drawings. Figure 1 is an elevation, partly in section, showing astove arranged for both heating and lighting. Fig. 2 is a plan, partlyin section, of a stove with the cover removed. Fig. 3 is a section online a of Fig. 1, showing the slide in the bottom of the coking-chamber.

A is a coking-chamber. The coal is first placed in this chamber and afire started in the fire-pot B with any kind of material suitable forthe purpose. The heat thus generated not only warms the room in whichthe stove may be placed, but also cokes the coal in the coking-chamber,which is made practically air-tight for this purpose. The gases producedin this chamber pass out through outlet I) and pipe P into the reservoirN, from which leads a pipe to gas-jet O. There is only one jet shown inthe drawings; but it is to be understood that any number may be used,depending upon the size of the coking-chamber and the amount of gasproduced.

By making the gas-pipe P sinuous in form the heavier constituents of thegas, such as tar, &c., will more readily separate from the lighter, infact purifies it to a certain extent, and the gas that passes into thereservoir is of better quality for lighting purposes.

A pipe L is connected to pipe P and leads to the fire-pot B, so that allby-products separated from the gas drop into fire-pot B and areconsumed. The pipe P is also provided with a check-valve T(shown indotted lines in Fig. 1) to prevent the gas from flowing back into thestove.

e have found it advisable upon starting the fire to open the slide F andallow the heavy gases which are first formed in the cokingchamber topass through the chamber G and opening H into the fire-pot B, where theyare nearly, if not entirely, consumed, the residue, if any, passing outthrough chimney O, which leads directly from the heatingor flamechamber. This flame-chamber is above the fire-pot B and entirelysurrounds the cokingchamber A. As soon as the coal begins to coke theslide F is closed, and the gas then passes through pipe P into reservoirN, as above described.

If at any time it is found desirable not to use the gas for burning infire-pot B or for lighting, the slide F being closed, the slide E isopened, and the gas passes directly from outlet D into chimney C.

When the coal in the coking-chamber has been thoroughly coked, the slideK is withdrawn, allowing the coke to drop into the firepot B. Thecoking-chamber A is made larger at the bottom than it is at the top inorder that the coke may drop very freely. By replacing slide K andfilling chamber A with fresh coal the coke which has been dropped intothe fire-pot B is burned to again produce coke and gas in chamber A, asheretofore described.

The slide K is arranged with a cast piece M, which closes the opening inthe outside wall of the stove when slide K is closed, as shown in Fig.3. This opening is made in the wall of the stove to allow the slide K tobe nearly or entirely withdrawn, if necessary.

At the bottom of chamber G a door R is provided, through which soot,&c., may be taken from stove. The door Q is provided to enable operatorto see into fire-pot B, and through draft-door S the ash-pan I may bewithdrawn.

\Vhat we claim is 1. In a heating and lighting apparatus, thecombination of a fire-pot, a heat or flame chamber, a coking-chamber astorage reservoir for gas, a passage-way connecting the cokingchamberand the storage-reservoir of suchform as to purify the gas, and achannel or chamber connecting the passage-way to the storage-reservoirand the fire-pot, said channel or chamber being provided with a slide ordamper at its upper end and a door at or near its lower end,substantially as described.

2. In a heating and lighting apparatus, the combination of a fire-pot, aheat or flame chamber surrounding the coking-chamber, a cokingchamber,provided with a sliding bottom, and made larger at the bottom than atthe top, a storage-reservoir for gas connected to the coking-chamber bya gas-pipe sinuous in form and provided with a check-valve and drippipejoined to the gas-pipe and opening into the fire-pot and a channel orchamber Gr connecting the passage-way to the storage-reservoir and theash-chamber, provided with a slide or valve at or near its union withthe passage-way to the storage-reservoir, and a door below its unionwith the ash-chamber,

ber provided with an outlet or chimney at or near its upper end, acoking-chamber provided with an outlet at or near its upper end, agas-reservoir connected by a pipe to the outlet from the coking-chamber,a slide'or damper between the outlet from the cokingchamber and thechimney and a channel or chamber connecting the outlet from thecoking-chamber and the ash-chamber, said channel or chamber beingprovided with a slide or damper at its upper end and a door at or nearits lower end substantially as described.

In testimony whereof we sign this specification in the presence of twowitnesses.

' THOMAS G. SMART.

JOHN E. LYNCH. Y

Witnesses:

CHARLES E. WISNER, M. D. LINTON.

